Big Creek near the end has no bridge. You might be able to ride across when the water is low. After a rain, however, the only way across is to get your feet wet.
Section 31 starts at US 27 and ends at the National Park Boundary. The trail starts easy but gets difficult a short ways in. Much of it is very rideable, but there are a few hike-a-bike spots.
The end is marked with an obvious large wooden sign that says, "NPS Boundary".
Parking: There is parking available at the beginning of the trail adjacent to the Flat Rock Missionary Baptist Church with a shelter and picnic tables. There is also a gravel parking lot a short distance south on US 27 for Sheltowee Trace NRT: Section 30. This is a good place to park for extra mileage. There is no parking near the end of Section 31.